Projectile-thrower.



A. BEATY. PROJECTILE THROWER.

APPLICATION FILED JAN. 20, I915.

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.anrncn BEATY, or SAN FERNANDO, camronnra.

PROJECTILE-THIROWER.

Specification of Letters Patent.

Patented Sept. Ml, 11915.

Application filed January 20, 1915. Serial No. 3,302.

To all whom it may concern Be it known that I, ARTHUR BEATY, a citizen of the United States, residing at San Fernando, in the county of Los Angeles and providing the necessary force or power, to

do the work.

An important object of the invention is to provide means of the above mentioned character, which are simple in construction, inexpensive to manufacture, convenient in use, strong and durable.

A further'object of the'invention is to provide means of the above mentioned character, adapted to dispense with the ordinary elastic bands or elements heretofore employed in such apparatus and which is light, and formed of few and simple parts that may be readily separated and assembled.

A further object of the invention is to ated by a vacuum or pressure, and connected with a projectile receiving member, by block and tackle or speed increasing means, whereby the velocity of the projectile receiving member greatly exceeds that of the piston, upon the operation of the apparatus.

Other objects and advantages of the invention will be apparent during the course of the following description.

In the accompanying drawings forming a part of this specification and in which like numerals are employed to designate like parts throughout the same, Figure 1 is a central longitudinal sectional view through apparatus embodying my invention, Fig. 2 is a similar view through a slightly modified form of the invention, and, Fig. 3 is a horizontal sectional view taken on line 3-3 of Fig. 2.

In the drawings, wherein for the purpose of illustration is shown a preferred embodiment of my invention, the numeral 5 designates a tubular handle, having its lower end closed and a shock absorbing member or washer 6, arranged therein, which is formed of felt, leather, or the like. Arranged ad acent the upper end of the tubular handle are spaced upwardly diverging preferably hollow or tubular arms 7, carried by a tubular coupling or sleeve 8, with which they are rigidly connected by any suitable means. This tubular coupling is preferably connected with the tubular handle 5 by ha ing screw-threaded engagement therewith, as shown at 9.. Any other suitable means may be employed to connect the arms with the upper end of the tubular handle 5. The numeral 10 designates a plunger as a whole, adapted to fit snugly within the tubular handle 5 to reciprocate therein, for a purpose to be described. This plunger preferably embodies a body portion 11, preferably formed of wood, and decreasing in diameter downwardly, providing an annular space 12. The body portion 11 of the plunger 10 is provided with an axial opening, receiving a bolt 13, having a lower head 14. Arranged formed of leather or the like, with its ends preferably bent upwardly for slidable engagement with the tubular handle 5 for further effecting an air tight engagement between the plunger and the handle 5. The upper end of the bolt 13 extends through an aperture in the washer l6 and preferably has screw-threaded engagement with a substantially U-shaped attaching member or bracket 17, within which is rotatably mounted a preferably grooved pulley 18, as shown.

The numeral 19 designates a -u'eferably flexible pocket or projectile receiving member, to the opposite ends of which are se cured the ends of flexible and preferably nonextensible members 20, passing about preferably grooved pulleys 21', rotatably held within the ends of the arms 7. These.

ley 18 and upwardly for attachment with a portion of the coupling 8, as shown at 23.

In Fig. 2, the flexible members 20 are passed about the grooved pulley 18, and eX- .ten'd' upwardly and are passed about a grooved pulley 24E, rotatably mounted upon the coupling 8, and then downwardly and attached to the bracket or member 17, as

' shown at 25.- The function of the pulleys,

over that of the plunger, upon flexible members 20, and their arrangement with respect to the plunger and member 19 isms provide means whereby the velocity of the member 19 is substantially increased the move-- ment of the plunger. These pulleys and fflexible members, in the two forms of the invention' constitute speed increasing or block and tackle means, and will -be so described in certainof the claims. y

In operation, the projectile, which may be a stone, arrow, or the like, is suitably held within the -pocket or member 19 and the member drawn rearwardly a suitable distance while the tubular handle is held relatively -stationary. This movement of the member 19 causes the upward movement of {the plunger 10, whereby a substantial vacuum is created below the plunger 10, Within the lower end of the tubular handle 5.1'5There is preferably no substantial pressure-within the upper portion of the tubular handle, as the air may enter through the slots dr' openings provided for the pulley 24,-and flexible members 20.

When the member 19 is released, the vacuum within the lower end of the tubular handle quickly returns the plunger to the lower portion, -with the head 14 preferably engaging the member 6. By the peculiar construction of the washers 15 and 16 with their up-turned -.edges, the air pressure above them serves to hold the same in proper engagement with the inner wall of the tubular handle, thus preventing leakage. upon the operation of the apparatus.

I do not wish to restrict myself to the use of any particular form of plunger, while the -.one shown is preferred. In Figs. 1 and 2, the plunger is shown as moved to the active position, wheieby thesame will be drawn downwardly when the member 19 is Copies of this patent may be obtained for five cents each, by addressing the Waahimgtmi, t7.

sorted to without departing from the spirit of the invention or the scope of the subjoined claims.

Having thus described my invention, I 3

claim 1. In apparatus of the character described, a tubular handle provided with spaced arms, a plunger mounted to reciprocate within the tubular handle, a projectile receiving member, and a flexible member connected with the projectile receiving member and connected with the arms and the plunger.

2. In apparatus of the character described, a tubular handle provided with spaced arms, a plunger mounted to reciprocate within the tubular handle, a projectile receiving member, guide elements carried by the arms, and relatively inextensible flexible connecting means between the plunger and projectile receiving member and engaging the guide elements.

3. In apparatus of the character described, a tubular handle, a projectile receiving menr her, a plunger mounted to reciprocate within the tubular handle, and speed increasing connecting means between the plunger and projectile receiving member.

'4. In apparatus of the character described, a tubular handle provided with spaced arms carrying guide elements, a plunger mounted to reciprocate within the tubular handle, a pulley carried by the plunger, a projectile receiving member, and flexible members connected with the projectile receiving member, engaging the guide-elements and pulley, and secured to the tubular handle.

5. In apparatus of the character described, a tubular handle provided with spaced arms, a projectile receiving member, a plunger mounted to reciprocate within the tubular handle, and block and tackle connecting means between the projectile receiving member and plunger and anchored to the arms.

6. In. apparatus of the character described, a tubular handle provided with spaced arms carrying guide elements, a plunger mounted to reciprocate within the tubular handle, a pulley carried by the plunger, a second pulley secured to the upper portion of the tubular handle, a projectile receiving memher, and flexible elements secured to the projectile receiving member, trained about the pulleys and attached to the plunger.

In testimony whereof I afiix my signature in presence of two witnesses.

ARTHUR BEATY.

Witnesses:

J. H. JENIFER, GEO. EV. Barns.

commissioner of Patents, 

